Charles raymond



(Model.)

.0. RAYMOND. Bobbin Wind-er.

No. 239,059. Patented Ma r-ch 2 2, 18 81.

N. PETERS, PHQTO UIHOGRAPNER, WASHINGTON. DV 6.

UNITED STATES PATENT OFFICE.

CHARLES RAYMOND, OF GUELPH, ONTARIO, CANADA.-

BOBBlN-WlND-ER.

SPECIFICATION forming part of Letters Patent No. 239,059, dated March22, 1881. Application filed April 21, 18st. (ModeL) cation.

This invention has relation to improvements in bobbin-winders forsewing-machines of the class in which the thread is automatically guidedto and fro on the bobbin for the purpose of laying the thread regularly.

In the accompanying drawings, Figures 1 and 2 are front and back views,respectively, of a bobbin-winder embodying my improvements. Fig. 3 is anendview Figs. 4, 5,and 6, details of drivingspindle and stationarybobbin-holding arm. Figs. 7 and 8 are general views in perspective,showing the application of the bobbin winder to a sewing-machine and theposition of the thread.

A is the winder-frame, constructed of metal and provided with a longbearing, A, to receive the driving-spindle, a socket, A to receive thestationary bobbin -holder 0, and a curved thread-distributor, A allcombined in asingle piece of metal, and so arranged that when placed onthe machine it fronts toward the operator and the bobbin is fullyexposed during the operation of winding. The driving-spindle is made intwo. sections.

B is a horizontal stem, to which the drivingdisk b is attached and B, asleeve, into the recess of which the end of the stem B passes, and, inconnection with the spring B slot B and pin B, and the sleeve, forms adrivingspindle and bobbin-holder which is adjustable in length,and whichis so arranged in its supporting-bearings A that the act of plaoin g thebobbin in position for winding pushes the driving-wheel into workingconnection with the hand-wheel of machine. Near its front end the sleeveB is reduced in diameter for a portion of its length corresponding tothe horizontal movement of the spindle, in order that the oil of thehearing may not be carried forward into contact with and soil thethread.

D is the presser-bar, hinged in a recess, A, in the frame of the winder,and having a square heel, by which it can either be held against thebobbin or away from it by the force of the spring D, secured on thefront of the winder-frame. This mode'of mounting the presser andpresser-spring leaves the batik of the winder-frame clear ofobstruction, and by means of the bearing-strips a a enables the threadto be carried freely behind the frame of winder in a suitable recess tothe distributingcurve, and thence downwardly to the bobbin.

E is a lug fashioned on the base of the winder-frame to form aretaining-shoulder for the thread as it comes from the-machinetensionroll. The intersection of the edge of this lug with the bottom ofthe winder-frame forms the center from which the circle of thedistributingcurve is struck, and in operation,therefore, as the threadtravels to and fro on the distributing-curve, the length of thread fromthe lugshoulder to the edge of the distributing-curve at any portion ofits stroke is equal, thus insuring the regular Winding of the thread onthe bobbin, and enabling it to be automatically returned over itself inlayers at each end of the bobbin without difficulty and with certainty.

The winder is constructed and adapted to utilize the tension arrangementof the machine proper Without providing any special tensionspring orother device on the bobbin, thus saving expense, complication of parts,and

simplifying the threading of the winder.

As shown in Figs. 7 and 8, the thread-tension, both for the machine andwinder, is provided in the tension-roll F, which is common to both. Thusthe thread need not be taken out of the tension-roll in changing fromneedle to bobbin, and inversely from bobbin to needle. Another point ofadvantage is the ease and simplicity of the operation of threading thewinder, there being no small holes, grooves, or guides. The thread issimply passed behind the frame of the winder, over thedistributing-curve, direct to the bobbin, and, from the fact of thepresser-spring being on the front of the frame, there is no obstructionto the passage of the thread or its movement to and fro on thedistributing-curve.

I claim as my invention- 1. In bobbin-winders, the thread-distributingcurve and thread-retaining lug, placed, respectively, above and belowthe bobbin, in combination with a winder frame constructed to beattached to the arm of a sewing-machine, and having bearing-strips toform a recess, to permit of the passage of the thread at the back of theWinder-frame, and between it and the arm to which it is attached,substantially as shown and described.

2. The combination of a frame, A, the fixed support 0 for the bobbin,and a sliding revolving support, made in two sections, B B,

connected to revolve together, and pressed in bin, whereby the insertionof the bobbin will force the disk against the wheel of thesewinglnaehinc, substantially as and for the purpose specified.

3. The combination of the frame A, fixed support 0, slotted sleeve B,and spring B with the spindle B, provided with disk I), and pin 13,whereby the insertion of the bobbin will force the disk against thewheel of the machine, substantially as described, and for the purposespecified.

CHAS. RAYMOND.

Witnesses:

HUGH A. STEWART, A110. H. lVIACDONALD.

